App4mac today introduced CheckUp 1.0, a new application for monitoring the activity of your computer. According to the company, "CheckUp allows you to understand the behavior of your computer in real time. It also allows you to manage alerts to prevent problems in the future." The first beta version of CheckUp will be available on December 10th. Those interested in participating in the beta can sign up on the company's website. CheckUp is optimized for Mac OS X 10.4 Tiger and Mac OS X 10.5 Leopard. It requires a computer with a PowerPC G4, G5 processor or an Intel processor.